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From: "Alex Xu (Hello71)" <alex_y_xu@yahoo.ca>
To: linux-mm@kvack.org, linux-kernel@vger.kernel.org
Cc: Vineeth Remanan Pillai <vpillai@digitalocean.com>,
	Kelley Nielsen <kelleynnn@gmail.com>,
	Huang Ying <ying.huang@intel.com>,
	Hugh Dickins <hughd@google.com>, Rik van Riel <riel@surriel.com>,
	Andrew Morton <akpm@linux-foundation.org>
Subject: shmem_recalc_inode: unable to handle kernel NULL pointer dereference
Date: Sun, 24 Mar 2019 11:30:41 -0400	[thread overview]
Message-ID: <1553440122.7s759munpm.astroid@alex-desktop.none> (raw)

I get this BUG in 5.1-rc1 sometimes when powering off the machine. I 
suspect my setup erroneously executes two swapoff+cryptsetup close 
operations simultaneously, so a race condition is triggered.

I am using a single swap on a plain dm-crypt device on a MBR partition 
on a SATA drive.

I think the problem is probably related to 
b56a2d8af9147a4efe4011b60d93779c0461ca97, so CCing the related people.

Thanks,
Alex.

             reply	other threads:[~2019-03-24 15:30 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-03-24 15:30 Alex Xu (Hello71) [this message]
2019-03-25 22:08 ` shmem_recalc_inode: unable to handle kernel NULL pointer dereference Vineeth Pillai
2019-03-25 22:08   ` Vineeth Pillai
2019-03-31 16:15   ` Alex Xu (Hello71)
2019-03-31 19:21     ` Hugh Dickins
2019-03-31 19:21       ` Hugh Dickins
2019-04-03  0:30       ` Hugh Dickins
2019-04-03  0:30         ` Hugh Dickins
2019-04-05  2:12         ` Hugh Dickins
2019-04-05  2:12           ` Hugh Dickins
2019-04-05  9:41           ` Konstantin Khlebnikov
2019-04-08  6:05             ` Hugh Dickins
2019-04-08  6:05               ` Hugh Dickins
2019-04-08  7:19               ` Konstantin Khlebnikov
2019-04-08 17:26                 ` Hugh Dickins
2019-04-08 17:26                   ` Hugh Dickins

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